Wheel.



T. L. RAMSEY."

WHEEL. APPLIUATION FILED AUG. 7, 1909.

Patented May 9, 1911, 7;

rial is loosely mounted on the axle 4.

UNITED STATES PATENT orator THOMAS L. RAMSEY, 0F MIDDL EGROVE, ILLINOIS, ASSIGN'OR 0F ONE-HALF TO ALBERT P. BOND, 0F MIDDLE GROVE, ILLINOIS.

WHEEL.

Specification of Letters-Patent.

Application filed August 7, 1,909. Serial No. 511,774.

To all whom it may concern:

Be it known that I, THOMAS L. RAMSEY, a citizen of the United States, residing at Middlegrove, in the county of Fulton and State of Illinois, have invented a new and useful \Vheh-of whicli'the following is a specification.

This invention relates to new and useful improvements in spr1nghubs, more particularly adapted to wheels of motor driven ve- 7 A still further object is a means for transmitting the power from the axle to the telly; of. the wheel in'a motor driven vehicle without in any way straining the springs.

With the above and other objects in view the invention consists in the construction,

combination and arrangement of parts here-' inafter fully described, specifically claimed and illustrated in the accompanying drawings whcrein,;

Figure 1 is a side elevation of a hub constructed after my improved method showing in detail the means whereby power is transmitted from the axle to the folly of the wheel. Fig. 2. is a similar view with one of the side retaining plates removed. Fig. 3 is a transverse cross section taken on the line 3-3 of Fig. 1. Fig.4 is a. perspective view of a section of the axle bearing and a spring constructed after my improved method.

The spring hub forming the subject matter of the present invention comprises a steel ring 1 having the spokes 2 radiating therefrom and the side plates 3 rigidly secured to the axle 4 by the set screws 5 forming in combination therewith an approximately hollow drum.

. A concentrically disposed band 6 formed of leather or any similar antifriction mate- Apair of metal rings 7 and8 surround the band 6.

The ring 8 is formed with transverse orifices or openings 9 to receite the transversely bent inner ends all jars which might of springs 14. Oppositely, disposed to said transverse orifices?) are the bearing blocks 10 operated by set screwsll piercing'the ring 1 and having the bands 12 secured. to their inner faces and bent into loops 13. These bearing blocks are of slightly convex structure in order that the same ma obtain approximately the curvature of the outer ring 1 and as a result allow greater adjustment for the springs 14 interposed between said' blocks and the band 6.

The springs 14 are pyramidal coil springs,

being of such construction that they may approximately fill the space indicated in general as B formed between the plates, havmg each terminal thereof bent inwardly across the axis of the spring to form the .arms 15 which are engaged at the base by the loop 13 on the bearing block and at the apex by the transverse openings 9 in the ring 8. I

In order to provide a means whereby power may be transmitted from the axle to the outer ring 1, the plates 3 arekeyed rigidly to the axle 4 and rotate therewith, and the latter revolves the ring 1 through the instrumentalityof the U-sha'ped draw bars 16,-

each arm of which extends to engage one of said plates 3, while the base is rigidly secured to the outer ring 1, where it is rigidly secured by the plate 17. The arms are. looped at their ends and-the loops are en gaged by the pins 18 carried on the plates 3 and are so constructed that a spring 20 may be interposed between each pin and inwardly bent terminal 19, thus eliminating arise from starting or stopping the Vehicle.

A wheel of this construction possesses sufficient resiliency for all classes of vehicles and power can be transmitted from the axle to the wheel through the plates 3 and rod 16. without straining or breaking the springs. It will be also seen that through the instrumentality of the set screw '11 the resiliency of the springs may bere'gulated to conform with the load carried by the vehicle, and that said springs being of pyramidal construction approximately fill the space B.

Having thus fully described my invent-ion what I claim as new and'desire to secured); U. S. Letters Patent is i- 5 In a resilient hub of. the class described, the combination with an axle, of a concentri- Patented May 9, 1911..-

eally disposed inner band loosely mounted on the said axle, said band being constructed of approximately anti-friction material, superimposed rings around said band, whereof the innermost has transverse orifices formed therein, an outer ring'qoncentrically spaced from said inner rings, and having set screws therein, convex bearing'plates operated by said set screws, and having transverse loops on their inner faces, pyramidal coil springs interposed between said inner rings and bearing plates and having arms at their ends engaging said orifices and loops, side retaining disks rigidly secured to said axle, and U-shaped draw bars transversely disposed on said outer ring and having their arms resiliently secured to said side disks.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

THOMAS L. RAMSEY.

\Vitnesses:

CHAS. NEUCOMB, ALDEn G. SAUNDERS. 

